gsr use map not maf and the map and o2 do not compensate for rich/lean and make changes. the only compensation the o2 does is during closed loop operation (emmissions) and that is under lighter loads. wot the ecu fuels/times based on what the map shows. stock ecu doesn't even have any boost tables...it stops @ 0" vac. therefore, if you could keep the ecu from freaking out when it sees boost it would keep fueling the same and timing the same for 0" vac all the way up through how much boost you push=lean and boom!
even if you have a chipped ecu that has extended tables for boost would be better, but again, since hondas are map and rpm based it's going to fuel based on load at a particular rpm. a map tuned for a baby turbo is going to need more fuel down low and less up top rpms vs. a large turbo is going to spool differently and need less fuel down low and more up top because it's flowing more cfm up top.
sounds like you're trying to save some $, but doing what you're proposing is going to cost you way more in the long run.
hope that makes sense.
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Originally Posted by 91boostdgsr
